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| Number | Title | Issue Date |
| 7832341 | Merging combustion of biomass and fossil fuels in boilers A method of injection and combustion control and related injection nozzles and lances are described which facilitate the merging of the combustion of fossil fuels and separately added solid biomass waste product fuels in the form of pelletized chars and fine particu... | 11/16/2010 |
| 7810441 | Coal burner assembly A burner assembly including a housing having an air inlet, a burner end having an opening, a longitudinal axis extending generally from the air inlet toward the burner end, a motor, an impeller mounted in the housing and being in fluid communication with the air inl... | 10/12/2010 |
| 7341007 | Balancing damper An apparatus for use in a furnace system to facilitate efficient and complete combustion of coal streams in a carrier gas. The apparatus, capable of being positioned horizontally or vertically in the coal pipes between the grinding mills and the furnace burner, cont... | 03/11/2008 |
| 7104251 | Fluid swirling device having rotatable vanes The device includes a set of rotatable vanes and a set of stationary vanes which are mounted within a cylindrical housing. The set of rotatable vanes are connected to a post located at the axis of the housing and rotate relative to the post in response to the intake... | 09/12/2006 |
| 6959653 | Fuel nozzle for a fossil fuel fired combustion arrangement A pivot mounting apparatus 210 is provided for pivotally mounting to one another the coal nozzle tip 212 and coal nozzle body 214 of a pulverized solid fuel nozzle 208 of a pulverized solid fuel-fired furnace 10. The pivot mounting... | 11/01/2005 |
| 6684796 | Particulate injection burner A burner has a body portion and a main outlet. Fuel and primary oxidant outlets are arranged upstream of the main outlet and are disposed substantially concentrically about the axis of the burner. A chamber inside the body portion provides a place for the... | 02/03/2004 |
| 6659024 | Powdery fuel combustion apparatus A powdery fuel combustion apparatus disposed on furnace side plane (7) of vertical square body type furnace in which a vertical plane passing through a fuel jetting directional axis (8) does not cross the furnace side plane orthogonally, and thus the work... | 12/09/2003 |
| 6189812 | Welded or nested sheet metal nozzle for injection pulverized coal for thermal power plant boilers A nozzle for injecting pulverized coal into the combustion chamber of a thermal power plant boiler includes a first metal housing and a second metal housing surrounding the first housing and defining with it an annular space through which passes a seconda... | 02/20/2001 |
| 6152052 | High temperature material face segments for burner nozzle secured by brazing A water jacket face of a burner nozzle for a synthesis gas generator is protected from hot gas corrosion by an annular heat shield of high temperature material tiles. Angular segments of a tile annulus around a burner nozzle orifice are secured to the wat... | 11/28/2000 |
| 6152051 | Powered fuel combustion burner with nozzle flow guide A combustion burner includes a mixture nozzle, a gas supply nozzle, and a flow guide. The mixture nozzle extends toward an interior of a furnace, and defines a mixture passage through which a mixture containing powdered solid fuel and gas for transferring... | 11/28/2000 |
| 6105516 | Burner nozzle for pulverized coal A stationary coal nozzle for a burner on a pulverized coal fired furnace having an elongated tubular nozzle with an inlet for receiving a flowing stream of coal/air mixture and an outlet for discharging the flowing stream into a combustion zone of a furna... | 08/22/2000 |
| 6089171 | Minimum recirculation flame control (MRFC) pulverized solid fuel nozzle tip A minimum recirculation flame control (MRFC) solid fuel nozzle tip (12) that is suited to being cooperatively associated with a pulverized solid fuel nozzle (34) of a firing system in a pulverized solid fuel-fired furnace (10). The MRFC solid fuel nozzle ... | 07/18/2000 |
| 6055913 | Coal spreader with swirl vanes An integrally cast, non-welded coal spreader for a furnace or boiler burner has integrally cast swirl vanes. A shaft of the spreader extends into the hollow interior of a cap of the spreader and the vanes extend outwardly of the cap and are cast as one pi... | 05/02/2000 |
| 6053118 | Pulverized fuel rich/lean separator for a pulverized fuel burner A pulverized fuel combustion burner includes a pulverized fuel and air mixture conduit. A pulverized fuel rich/lean separator is disposed at the axial center of the conduit so that a high concentration mixture is formed at an outer peripheral portion of t... | 04/25/2000 |
| 6024030 | Pulverized fuel combustion burner A burner for combustion of a pulverized coal mixture having two kinds of rich and lean concentration has a height of a burner panel reduced and the overall burner simplified. A rich/lean separator (10, 20, 30) is provided within a pulverized coal conduit ... | 02/15/2000 |
| 5979342 | Method and apparatus for the reduction of NOx generation during coal dust combustion A burner for the combustion of coal dust in which a stream of primary air and coal dust mixture is conducted through a dust conduit connected to a primary dust tube. A secondary air tube surrounds the primary dust tube, and a tertiary air tube surrounds t... | 11/09/1999 |
| 5964166 | Pulverized coal injection nozzle A nozzle for the injection of solid fuel in dust form into a combustion chamber, to be installed in correspondence with the outlet of a burner coaxially to the longitudinal axis of the burner, comprising a stationary annular part divided into coal ducts o... | 10/12/1999 |
| 5950547 | Combustor for burning a coal-gas mixture A coal combustor for combustion of coal in fossil burning plants, comprising a refractory including a reactor chamber, combustion chamber, and discharge chamber serially connected along a central longitudinal axis. The chambers define, respectively a reac... | 09/14/1999 |
| 5937770 | Pulverized coal burner A pulverized coal burner includes a venturi for contracting a flow of a mixture of pulverized coal and primary air toward a central axis of a fuel nozzle 2. A spindle having a cone is provided coaxially with the central axis and gradually expands from an ... | 08/17/1999 |
| 5934206 | High temperature material face segments for burner nozzle secured by brazing The water jacket face of a burner nozzle for a synthesis gas generator is protected from hot gas corrosion by an annular heat shield of high temperature material tiles. Six, for example, angular segments of a tile annulus around a burner nozzle orifice ar... | 08/10/1999 |
| 5878676 | Burner and furnace operated with at least one burner A burner is provided for a furnace having at least one windbox that is supplied with air for combustion and has extending therethrough at least one such burner, which opens out toward the combustion chamber. The burner has at least one primary air channel... | 03/09/1999 |
| 5842426 | Pulverized fuel combustion burner having rich/lean separator A burner for combustion of a pulverized coal mixture having two kinds of rich and lean concentration has, a height of a burner panel reduced and the overall burner simplified. A rich/lean separator (10, 20, 30) is provided within a pulverized coal conduit... | 12/01/1998 |
| 5829369 | Pulverized coal burner A burner having lower emissions and lower unburned fuel losses by implementing a transition zone in a low NOx burner. The improved burner includes a pulverized fuel transport nozzle surrounded by the transition zone which shields the central ox... | 11/03/1998 |
| 5829367 | Pulverized fuel combustion burner having a flame maintaining plate at a tip end portion of a pulverized fuel conduit A burner for combustion of a pulverized coal mixture having two kinds of rich and lean concentration has a height of a burner panel reduced and the overall burner simplified. A rich/lean separator (10, 20, 30) is provided within a pulverized coal conduit ... | 11/03/1998 |
| 5762007 | Fuel injector for use in a furnace A fuel injector for use in a furnace is provided. The fuel injector may include a generally tapered configuration and a nozzle having a plurality of open sections, which preferably have an elliptical configuration, arranged at the output for providing ric... | 06/09/1998 |
| 5724901 | Oxygen-enriched gas burner for incinerating waste materials An oxygen-enriched gas burner and method of operation thereof for incinerating and/or melting and/or vitrifying and/or performing thermal treatment and/or oxidizing ground/liquid waste materials and particularly, but not exclusively, contaminated waste ma... | 03/10/1998 |
| 5709160 | Apparatus for the combustion of fluids with high particle content An apparatus for the combustion of a suspension of a combustible liquid and combustible solids in particle shape, for instance carbon particles, includes a tank, a burner unit and a pipe which is connected to the burner unit and which protrudes into the t... | 01/20/1998 |
| 5685240 | Variable orifice plate for coal pipes A flow control apparatus for a coal pipe containing a stream of primary combustion air carrying pulverized solid fuel particles, includes a frame sealingly secured to an outside surface of the coal pipe around a window opening formed on one side of the pi... | 11/11/1997 |
| 5685242 | Pulverized coal combustion burner A pulverized coal combustion burner includes a pulverized coal nozzle, and secondary and tertiary air nozzles provided in concentric relation to the pulverized coal nozzle. A flame stabilizing ring is provided at an outlet end of the pulverized coal nozzl... | 11/11/1997 |
| 5680822 | Solid fuel burner A solid fuel burner mountable on a boiler furnace. The forward portion of the burner is insertable through an opening in the casing of the furnace so as to extend into the furnace's combustion zone. The burner includes a tubular main body accommodating a ... | 10/28/1997 |
| 5680823 | Short flame XCL burner A pulverized fuel burner having lower emissions and lower unburned fuel losses by outwardly diverting and swirling pulverized fuel at the outlet of a fuel nozzle carrying the pulverized fuel. Diverting cone is positioned at the outlet of the fuel nozzle a... | 10/28/1997 |
| 5678499 | System for preheating fuel A system and method for preheating a mixture of fuel and air as the mixture is introduced into a furnace combustion chamber comprises passing the mixture through a nozzle extending into an upstream portion of an opening defined in a wall enclosing the com... | 10/21/1997 |
| 5649494 | Burner for the combustion of fuel A burner (10) for the combustion of fuel comprises a passage (32) through which in operation a mixed flow of fuel and air passes for primary combustion at it's outlet. Two further annular passages (34, 36), concentric with and radially outward of the pass... | 07/22/1997 |
| 5605103 | Internal pitch impeller for a coal burner A coal burner with impeller for a furnace has a housing containing a plurality of sets of blades which direct the fuel from the coal nozzle into a plurality of non-intersecting flows directed obliquely towards the longitudinal axis of the housing. The non... | 02/25/1997 |
| 5560305 | Burner block and method for furnace A burner block for mounting a burner within a furnace containing a melt to be heated by the burner. The burner block comprises a body having a passageway terminating in a divergent opening. The passageway is configured to receive the burner so that the bu... | 10/01/1996 |
| 5542361 | Method for adjusting the supply of a reaction gas to be fed into a smelting furnace, and a multipurpose burner designed for realizing the same The invention relates to a method for feeding a reaction gas, such as oxygen or oxygen-enriched air to a flash smelting furnace through a concentrate burner, so that the gas is fed in around a pulverous material distribution channel located in the middle ... | 08/06/1996 |
| 5529000 | Pulverized coal and air flow spreader Pulverized coal and air flowing-in a coal nozzle are distributed for combustion with low NOX generation by a concentric central duct with long exterior spiraling vanes which extend upstream and attach to a support pipe extending further upstream in the no... | 06/25/1996 |
| 5513583 | Coal water slurry burner assembly In a conventional air burner for combustion of pulverized coal having a back and a front, and a coal feeding tube for the pulverized coal extending from the back to the front, an oil igniter connected to the front of the burner, an oil feeding tube connec... | 05/07/1996 |
| 4718359 | Process and a means for burning solid fuels, preferably coal, turf or the like, in pulverized form An apparatus is described for burning solid fuels, preferably coal in pulverized form, which are mixed with a carrier liquid, such as water and/or oil or the like, to thereby form an emulsion, and for this purpose the fuel emulsion is injected through a s... | 01/12/1988 |
| 4635567 | Monitoring of burner operation Three burners are supplied with pulverized fuel entrained in air from a splitter and are brought to combustion under optimum conditions by adjustment of the secondary air flow to each. The rates of flow of primary and secondary air are determined and sign... | 01/13/1987 |
